Crossbows - Everything about Building, Modding, and Using your Crossbow Gear

Latest topics

» Ottoman crossbows?
by MRobin Today at 11:00 am

» New Member and new trigger design
by Todd the archer Today at 1:37 am

» anywhere near me where I can see medieval crossbow?
by mac Yesterday at 12:39 pm

» improving the chu ko nu and medeival crossbow
by Gnome Yesterday at 12:19 pm

» Chinese pellet crossbow
by stm2010 Sat Apr 19, 2014 12:27 pm

» Vertical Steel Bow Medieval Crossbows
by HeroSK Fri Apr 18, 2014 6:51 am

» "Medieval" slingshot crossbow
by octavioaugusto.oliveira Thu Apr 17, 2014 7:11 pm

» usuario de mexico
by phuphuphnik Thu Apr 17, 2014 4:38 pm

» My slingshot gun for flechettes
by octavioaugusto.oliveira Wed Apr 16, 2014 8:54 pm

» Casting Aluminium for nut and bow irons??
by Hermit Wed Apr 16, 2014 1:20 pm

» Excel sheet for prod sizing (working on it)
by Spyro.Magno Tue Apr 15, 2014 5:33 pm

» Cobra Pistol Crossbow Mechanism
by Scotty Tue Apr 15, 2014 7:04 am

» Never mind! Figured it out!
by Stonedog Mon Apr 14, 2014 12:09 pm

» Unstriniging medieval crossbows and Cercy
by HeroSK Mon Apr 14, 2014 8:17 am

» My Ulrich is DONE!
by Hotspur Tue Apr 08, 2014 1:41 am

» RDT (Reverse Draw Technology) crossbow building
by Hermit Mon Apr 07, 2014 2:16 pm

» Fraying string?
by phuphuphnik Mon Apr 07, 2014 12:47 am

» pseudo compound pistol slurbow
by Gnome Sun Apr 06, 2014 8:47 pm

» mini-ulrich questions
by mac Fri Apr 04, 2014 1:56 pm

» Glued washers as nuts
by DARIVS ARCHITECTVS Fri Apr 04, 2014 12:12 am

» crossbow #2
by Gnome Thu Apr 03, 2014 8:21 pm

» Crossbow triggers
by Hermit Wed Apr 02, 2014 3:44 pm

» 7th Grade stonebows are finished!!
by phuphuphnik Tue Apr 01, 2014 10:12 am

» Crossbow nut on Ebay
by Geezer Sun Mar 30, 2014 2:03 pm

» stringin the nut question
by Gnome Sat Mar 29, 2014 12:57 pm

[Pistol Crossbow] Trigger design 5 5 3

    [Pistol Crossbow] Trigger design

    Share

    cbow101
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts: 6
    Join date: 2012-02-06
    Location: Canada

    [Pistol Crossbow] Trigger design

    Post by cbow101 on Mon Feb 06, 2012 5:22 pm

    Hello all, Newbie here, great site.

    Does naybody have a simple diagram of a pistol crossbow trigger design, would be much appreciated

    Ivo
    Admin
    Admin

    Posts: 1040
    Join date: 2009-11-26
    Age: 26
    Location: NJ, USA

    Re: [Pistol Crossbow] Trigger design

    Post by Ivo on Mon Feb 06, 2012 7:34 pm

    Hi and Welcome to the Arbalist. Smile

    That's as simple as it gets and is a version of the trigger present in all pistol bows on the market.

    [PDF - Download Link]

    Has a little safety there too. Smile



    Basically it just pushes the string over the edge that retains the string.









    There are some patents for more complicated systems, but as far as I know, they didn't last long due to their complexity and thus impracticality for what is considered a leisure crossbow.







    ...Of course you can go for something like this, which is right there in the middle and can be safely called - *Best of both Worlds*. Smile


    Good Luck. Any questions welcome.

    Ivo


    Last edited by Ivo on Tue Feb 07, 2012 2:44 am; edited 1 time in total




    * *
    ~ "I don't have any special talents. I'm only passionately curious."
    * * *
    ~ "All Genius is Simple"
    * *

    cbow101
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts: 6
    Join date: 2012-02-06
    Location: Canada

    Re: [Pistol Crossbow] Trigger design

    Post by cbow101 on Tue Feb 07, 2012 12:02 am

    Thanks Ivo,

    I cannot click the link to the PDF file for the top section.

    Please Elaborate......Basically it just pushes the string over the edge that retains the string. Orange and green diagram..Rolling Eyes

    That sounds like there are 2 strings in this design.?

    Ivo
    Admin
    Admin

    Posts: 1040
    Join date: 2009-11-26
    Age: 26
    Location: NJ, USA

    Re: [Pistol Crossbow] Trigger design

    Post by Ivo on Tue Feb 07, 2012 2:25 am

    Have faith my friend - there is only *one* string.Laughing (and it's marked with a red dot)

    ...orange is the bolt that the string engages as soon as it's pushed over the edge by the green trigger piece.

    Thanks for the laugh - don't take this trigger design thing too seriously. When you don't understand something, try mocking it up. Print the design, cut out the parts, and pin them to a board (placing pins where the axels are) and see how the bits interact.

    Don't underestimate this paper mockup step, we all do it and not only to understand, but to also fine tune even more complicated designs. Great stuff this CAD(Cardboard Aided Design) thing. Smile

    Good Luck.

    Ivo

    PS: PDF Link Fixed. It's a patent...and not the only one out there by the way. Wink




    * *
    ~ "I don't have any special talents. I'm only passionately curious."
    * * *
    ~ "All Genius is Simple"
    * *

    Antho
    Suspended
    Suspended

    Posts: 30
    Join date: 2010-01-11

    Re: [Pistol Crossbow] Trigger design

    Post by Antho on Wed Feb 08, 2012 9:13 pm

    I like your idea of using a square pipe for the nut.

    Ivo wrote:



    This might look like it's not much, but it's quite sufficient (I never went past 175lb during testing though) and the lightest latch that I know of....here's the material/layout.




    And for a Pistol bow, a bull-pup trigger would be cool. That way you can bring the nut all the way back to the rear of the pistol for longer draw (faster bolts) and push the grip a little forward for better balance. Smile



    Pistol bows are sweet...My faves here... Cool Cool Cool







    Lol, and this sick puppy from the Gearhead boys!!!




    What'ya know...looks liek they all use a pull-pup style trigger.

    Antho




    Ivo
    Admin
    Admin

    Posts: 1040
    Join date: 2009-11-26
    Age: 26
    Location: NJ, USA

    Re: [Pistol Crossbow] Trigger design

    Post by Ivo on Fri Feb 10, 2012 11:50 pm

    Antho wrote:I like your idea of using a square pipe for the nut.

    Ivo wrote:




    Yeh, that nut is pretty cool, not my idea though...just matching the design to widely available material - those sq. pipes can be found in any Homedepo/Lowes store and even in smaller hardware shops that have steel/aluminum stock bin somewhere in the corner.

    Antho wrote:And for a Pistol bow, a bull-pup trigger would be cool. That way you can bring the nut all the way back to the rear of the pistol for longer draw (faster bolts) and push the grip a little forward for better balance. Smile



    Antho

    There is a problem though...this nuts needs to be spring loaded( so that it resets automatically) and have a stop (so it doesn't spin through and wreck the springs)...AboMickey used a version of this group, but forgot the stop with all the resulting outcomes of inertia taking over upon release. >>> http://thearbalistguild.forumotion.com/t476-my-first-guild-crossbow-post

    Hope this helps. Smile And good to see you on the forum bro ...how long has it been since we saw each other in person? Razz You got any new projects started?

    Ivo




    * *
    ~ "I don't have any special talents. I'm only passionately curious."
    * * *
    ~ "All Genius is Simple"
    * *

      Current date/time is Thu Apr 24, 2014 11:57 am